Rear swing-truck for locomotives.



K. RUSHTON & E. M. SHANNON.

REAR SWING TRUCK FOR LOCOMOTIVES.

APPLICATION FILED FEB.17, l913 Patented Apr. 29, 1913.

2 SHEETSSHEET 1.

JJ Imam/01 9;

Kennel? K. RUSHTON & E. M. SHANNON. REAR SWING TRUCK FOE LOCOMOTIVES.

APPLICATION FILED FEB. 1'7, 1913.

Patented Apr. 29, 1913,

2 EHEETS-SHEET 2.

FZZLUOOQZM @lzannon UNITED STATES PATEnir OFFICE.

KENNETH BUBHTON AND ELLWOOD M. SHANNON,

VANIA, ASSIGNORS TO THE BALDWIN LOOOMOTIVE WORKS,

OF PHILADELPHIA, PENNSYL- OF PHILADELPHIA,

PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

REAR SWING-TRUCK FOR LOCOMOTIVES.

Specification of Letter: Yatent.

Patented Apr. 29, 1913.

Application tiled February 17, 1918. Serial No. 748,922.

To all whom it may concern:

Be it. known that we, KENNETH RUsIt'roN and Emavoon M. SHANNON, citizens of the United States, and residents of Philadelhia, Pennsylvania, have invented certain l mprovemcnts in Rear Swin -Trueks for Locomotives, of which the fa lowing is a specification.

' The object of our invention is to'construct the rear swin truck and the equalizing mechanism wiiich extends to the swing track, so that the said truck and its mechanism will not interfere with the use of a lar e ash pan.

n this improved truck cross bars are dispensed with, and the construction not only allows for the equipment of the locomotive with a large fire box, but also provides for the free swinging of the truck on its ivot, at the same time holding the equaizing mechanism in proper alinement.

In the accompanying drawings Figure 1, is a plan view of the underframmg of a locomotive illustrating our invention; Fig. 2, is a side view illustrating a portion of the rear of a locomotive and showing our invention; the axle being in section on the line a-a, Fi 1; Fig. 3, is a rear view of a locomotive illustrating our improvement; Fig. 4, is a perspective view of t to swing bracket illustrated in Fig. 1; and Fig. 6, is a view showin the connecting link between the cqualizm bar and the spring.

Referring to the drawings, 1, 1 are the two side frames of the locomotive.

2 is one of the driving axles having wheels.

4 is the boiler and 5 is the fire box havin the ash pan 6 which extends both forwar and back of the axle 7 of the swing truck 8 and between the side frames 1 of the lOCOmOtlVG. The frame 9 of the swing truck is pivoted at 10 to a cross member 11 extending from one side frame to the other. The frame of the truck is below the side frames and extends out beyond the side frames, as indicated in Fi 1, andoutside the wheels 12 of the truck. Said frame 9 has pedestals 13 for the box 14 in which the axle is mounted. Each pedestal has an extension 15 in which is mounted the spring 16. The central band of the spring is recessed and rocks on a pivot pin projecting from a plate 17 carried by the pedestal, as clearly shown in Fig. 2. The rear end of the spring r 16 is connected to a bracket 18 by two links 10. The up 701 ends of these links are sccured to a clip 20 which extends through a slot in the spring, in the present instance, and is held in place by a transverse pin. Each bracket 18 is firmly secured to a side frame 1 of the locomotive. The opposite end of each spring 16 is connected to a diagonal equalizing lever 21 ivoted at 22 through a 011 a 24, a pair of lin {S 23 and a clip 25 slot. to to receive the hooked end 26 of the equalizing lover. The opposite end of the equalizing lever 21 is connected through a link 27 to a (11058 bar 28, which is either hung connected to the balance of the equalizing mechanism of the locomot've. The e ualizing gear is arranged outside of the ramcs of the locomotive and clear of the ash pan;

there being no transversevbars extending I from one side of the truck to the other, which would interfere with a large ash pan.

The truck'swings freely on its pivot and mechanism must be provided for properly holding the connection between the equalizing lever and the 3; ring, so that the spring will not be drawn out of line and lateral strain placed upon the lever. This is accomplished by a bracket 20, which is pivoted at 8 l to bearings secured to each side frame ot the locomotive. The brackets are so formed as to extend through the space between the links 23, which connect the spring 15 to the equalizing lever 21. This construction holds the yet gives the flexibility necessary for the proper working of the truck and the equal- 12mg gear.

On the rear of the locomotive frame is to the frame of the locomotive or is arts in alinement and the ordinary centering cylinder 31 and on the truck are the plungers 32, so that when the truck moves out of alinement with the frame of the locomotive it is brought into nlincment again by this centering element. This feature, however, forms no part of our invention.

We claim *1. The combination in a locomotive, of a frame; a swing truck pivoted to the frame: an equalizing s ring mounted on each side of the truck; a ink connecting the rear end of each spring with the frame of the locomotive; iagonal equalizing levers mounted on the frame of the locomotive; links connecting the forward ends of the springs to the rear ends of the dia onal equalizing levers; and a pivoted brac et cou ling the last mentioned links to the side rames of the locomotive.

2. The combination in a locomotive, of side frames; a pivoted swing truck at the rear of the locomotive, the frame of the truck extending outside of .the line of the wheels; an axe mounted on the truck; wheels on the axle located between the frame of the truck and the side frames of the locomotive; an ash pan located between the 5 frames of the locomotive and extending forward of and rear of the axle of the truck; diagonal equalizin levers pivotally mounted on the frame 0 the locomotive; a s rin resting on each side frame of the rue above the axle; a fixed bracket projecting from each side frame of the locomotive at the rear of the truck; links connecting said brackets with the springs; links connecting the forward ends of the springs with the onal equalizing levers rear ends of the dia and brackets adapte to the side frames 0 the locomotive in front of the truck and extending through the space betweenthe links connecting the equalizing levers with the spring t 8. he combination in a locomotive, of side frames; a cross member; a truck frame Copies of this potent may ivoted to the said cross member, the said rame of the truck extending below the frame of the locomotive; a pedestal at each 'side of the frame; boxes in the pedestal; an axle; wheels mounted on the axle and located between the pedestals and the side frames of the locomotive;

a spring pivotally mounted on each pedestal above t 1e axle 3 a bracket secured 0 each side of the side frames of the locomotive; links connecting the brackets with the rear ends of the springs; a diagonal equalizing beam pivotally mounted on each frame of the locomotive; a link connectin the rear end of each equalizing beam wit the forward end of a spring; and brackets pivotally mounted on the frame of the locomotive at each side and arranged to swing vertically, the said brackets extending between the links connectin the rear ends of the e ualizing levers with t e springs, so as to ho d the parts in alinement when the truck swings on its pivot.

In testimony whereof, we have signed our names to this s ecification, in the presence of two subscribing witnesses.

KENNETH RUSHTON. ELLWOOD M. SHANNON.

Witnesses:

Gammon LmsLnY, R. H. SANFORD.

be obtained 20: five cents each, by addressing the Commissioner of Patents,

Washington, 3. 0. 

